LASER COMPONENTS are pleased to introduce the new sub femto ampere current amplifier DDPCA-300. The unit offers a very wide gain range from 104 up to 1013 V/A which can be set in decades either manually or by a remote interface. The sophisticated design achieves an extremely low input noise of minimum 0.2fA/√Hz. Thus, the amplifier can be used over a large dynamic range of more than 240dB for the measurement of currents from sub femto amps up to milli amps. The compact housing is optimised for use close to the signal source avoiding signal perturbations or noise pick-up due to long cables. Various signal filters are integrated for adaptation to differing signal conditions and measurement requirements.
The amplifier is construed for DC measurements with low drift and negligible offset. An adjustable bias voltage at the amplifier input is provided for the I/V characterisation of high impedance semiconductor structures and electronic components.
Applications: Typical applications for the DDPCA-300 current amplifier include high sensitivity current and charge measurements, spectroscopy, characterisation of MOS structures, as well as the use as photodiode amplifier or sub femto amp extension for standard digital voltmeters or A/D converters.
